Table 1.
Immunization plan followed in the experimental birds.
Groups (n=10 or 11/Group) * | Vaccine (Dose/Bird) | TLR Agonist(s) (Dose/Bird) |
---|---|---|
Control (A) | PBS | - |
Commercial vaccine (B) | Commercial oil adjuvanted inactivated NDV vaccine (recommended dose) | - |
Vaccine alone (C) | Inactivated NDV vaccine (≥107 EID50) | - |
Vaccine + TLR4 agonist (D) | Inactivated NDV vaccine (≥107 EID50) | LPS (50 µg) |
Vaccine + TLR7 agonist (E) | Inactivated NDV vaccine (≥107 EID50) | R-848 (50 µg) |
Vaccine + TLR4 and TLR7 agonists in low dose (F) |
Inactivated NDV vaccine (≥107 EID50) | LPS (25 µg) + R-848 (25 µg) |
Vaccine + TLR4 and TLR7 agonists in high dose (G) | Inactivated NDV vaccine (≥107 EID50) | LPS (50 µg) + R-848 (50 µg) |
* The number of birds was 10 in each group except groups F and G, where it was 11/group. +, indicate usage in combination.